/**
 *  工具方法
 * */ 

function getTextByJquery(arr) {
  var str = "", $ = layui.$;
  $.each(arr, function(index, item) {
      str += item + ",";
  })
  //去掉最后一个逗号(如果不需要去掉，就不用写)
  if (str.length > 0) {
      str = str.substr(0,str.length - 1);
  }
  return str;
}

// 文件下载方法  兼容ie10以上 
function openDownloadDialog(url, saveName) {
  // for ie 10 and later
  console.log(window.navigator.msSaveBlob);
  if (window.navigator.msSaveBlob) {
      try {
        window.navigator.msSaveBlob(url, downloadFileName);
      }
      catch (e) {
        console.log(e);
      }
  }
  // 谷歌浏览器 创建a标签 添加download属性下载
  else {
      if (typeof url == 'object' && url instanceof Blob) {
          url = URL.createObjectURL(url); // 创建blob地址
      }
      var aLink = document.createElement('a');
      aLink.href = url;
      aLink.download = saveName || ''; // HTML5新增的属性，指定保存文件名，可以不要后缀，注意，file:///模式下不会生效
      var event;
      if (window.MouseEvent) {
          event = new MouseEvent('click');
      }
      else {
          event = document.createEvent('MouseEvents');
          event.initMouseEvent('click', true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
      }
      aLink.dispatchEvent(event);
  }
}


var DownLoad = function (url, name) {
  if (!!window.ActiveXObject || "ActiveXObject" in window) {
    //ie
    var oPow = window.open(url, "", "width = 1, height = 1, top = 5000, left = 5000 ");
    var isOpen = true; //判断window.open是否被禁用
    try {
      if (oPow == null) {
        isOpen = false
      }
    } catch (err) {
      isOpen = false
    }
    if (isOpen) {
      //没禁用window.open采用window.open下载
      while (oPow.document.readyState !== "complete") {
        if (oPow.document.readyState === "complete") break;
      }
      oPow.document.execCommand("SaveAs", true, name);
      oPow.close();
    } else {
      //禁用了window.open采用iframe下载
      var oIrame = document.createElement('iframe');
      oIrame.style.width = "0px";
      oIrame.style.height = "0px";
      oIrame.style.opacity = 1;
      document.body.appendChild(oIrame)
      oIrame.src = url;
      var IfDoc = oIrame.contentDocument || oIrame.document;
      oIrame.onreadystatechange = function () { // IE下的节点都有onreadystatechange这个事件  
        if (oIrame.readyState == "complete") {
          // oIrame.execCommand("SaveAs", true, name)
          document.body.removeChild(oIrame)
        }
      };

    }

  } else {
    if (typeof url == 'object' && url instanceof Blob) {
      url = URL.createObjectURL(url); // 创建blob地址
    }
    var aLink = document.createElement('a');
    aLink.href = url;
    aLink.download = name || ''; // HTML5新增的属性，指定保存文件名，可以不要后缀，注意，file:///模式下不会生效
    var event;
    if (window.MouseEvent) {
      event = new MouseEvent('click');
    } else {
      if (document.createEvent) {
        event = document.createEvent('MouseEvents');
        event.initMouseEvent('click', true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
      }
    }
    aLink.dispatchEvent(event);
  }

}